Loudspeaker



FIG. 1 is a front elevational view of a loudspeaker showing my design;

FIG. 2 is a top, front, and right side perspective view thereof;

FIG. 3 is a bottom, front, and left side perspective view thereof;

FIG. 4 is a rear view thereof; and

FIG. 5 is a top plan view thereof.

The ornamental design for a loudspeaker, as shown and described.